Hiding positioning marks

摘要

A device (102) for modifying a document is disclosed. The document includes at least one positioning mark (202) pre printed on the document for printing data based on a location of the at least one positioning mark (202). The device (102) comprises a positioning unit (104) for locating the at least one positioning mark (202) on the document. The device (102) further comprises a hiding head (108) for hiding the at least one of the positioning mark (202) printed on the document.